Functions

Catalog and type of function that you can meet in any development language.

See Analytic Functions

See Time Series Calculation (AGO, YTD, ...)

Aggregate functions return a single value, calculated from values in a column.

Example of aggregate functions:

• AVG() - Returns the average value
• COUNT() - Returns the number of rows
• FIRST() - Returns the first value
• LAST() - Returns the last value
• MAX() - Returns the largest value
• MIN() - Returns the smallest value
• SUM() - Returns the sum

Scalar functions return a single value, based on the input value.

Example of scalar functions:

• LEN() - Returns the length of a text field
• ROUND() - Rounds a numeric field to the number of decimals specified
• NOW() - Returns the current system date and time
• TRIM() - Strip whitespace (or other characters) from the beginning and end of a text field
• Regular Expression
• Function - Concatenatation of string

Did they return always the same result ? deterministic properties